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Mathematics of Computation

Published by the American Mathematical Society since 1960 (published as Mathematical Tables and other Aids to Computation 1943-1959), Mathematics of Computation is devoted to research articles of the highest quality in computational mathematics.

ISSN 1088-6842 (online) ISSN 0025-5718 (print)

The 2020 MCQ for Mathematics of Computation is 1.78.

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Stabilized hybrid finite element methods based on the combination of saddle point principles of elasticity problems
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by Tianxiao Zhou PDF
Math. Comp. 72 (2003), 1655-1673 Request permission

Abstract:

How, in a discretized model, to utilize the duality and complementarity of two saddle point variational principles is considered in the paper. A homology family of optimality conditions, different from the conventional saddle point conditions of the domain-decomposed Hellinger–Reissner principle, is derived to enhance stability of hybrid finite element schemes. Based on this, a stabilized hybrid method is presented by associating element-interior displacement with an element-boundary one in a nonconforming manner. In addition, energy compatibility of strain-enriched displacements with respect to stress terms is introduced to circumvent Poisson-locking.
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Additional Information
  • Tianxiao Zhou
  • Affiliation: Aeronautical Computing Technology Research Institute, Xi’an 710068, Peoples Republic of China
  • Email: txzhou@163.net
  • Received by editor(s): October 13, 1999
  • Received by editor(s) in revised form: March 7, 2001
  • Published electronically: April 28, 2003
  • Additional Notes: This work was subsidized by the Special Funds for Major State Basic Research Projects (G1999032801) and the Funds for Aeronautics (00B31005)
  • © Copyright 2003 American Mathematical Society
  • Journal: Math. Comp. 72 (2003), 1655-1673
  • MSC (2000): Primary 65N12, 65N30
  • DOI: https://doi.org/10.1090/S0025-5718-03-01473-X
  • MathSciNet review: 1986798